Substances to be used as varnishes and for impregnation and insulation and method for their production.



UNITED .srn rns PATnur ornion.

- GOTTIJIEB; eo'rrrnmn .nr'nssnin orjzunIomWoLLrsHoFnN, SWITZERLAND.

sunsrnncns TO BE usnn AsvAniiisirnsfANn-ron'inrnnenn'rioii ts INSULATIONmnrnonilon' THEIR r'nonuotrioit.

No Drawing. p

. a v Specification of Letters Patent. Patented Jan. 10, 1911.Application-filednugust14,1908; Serial No. 448,628.

To all-iuhoutit concefn: I

-Be it known that I, GOTTLIEB Gorrrnmo Drnssnn, a subject of theEmperorof-Gerunknown substances and to methods for-their production,such-substances being-especially suitable for purposes of manufacturingvar-- many,'.residing at Zurich-Wollishofen, Swit-' zerland,'haveinvented certain new and useful Substances to 'beUsed asVar'ni'shes and for Impregnation and Insulation and following is aspecification.

The present Invention relates to 'Method for Their Production,.jofwhichthe hitherto nish, for impregnation and insulation. Accordln'g to..tlns lnvention, these bodies. are

formed chemical reactions between fatty acids or-substances'icontaining.fatty acids,

for instance, fatty oils, and'carbohydrates, suchas-starch,cellulose(oxyand .hydrocellulose), etc., the react-ionsb'ei'ng brought.

about at a temperature exceeding the limit. of decomposition of thereacting substances present. markably resistant against-chemical changesWhile these new bodies may be used for a variety of purposes, they areto be particularly employed for manufacturing varnishes, lacquers andpainting colors, by being to this end added to agglutinants orcoloringmatters. Moreover the products are intended for electrotechnical uses,-as materials forimpregnating, as insulating varnishes and insulatingsolids,.these different uses resulting according to the specific kind ofmaterial operated up on. a

he. bodies produced by the foregoing method can be vulcanized by eithercold. or

hot processes. into solids with or without the aid of agglutinants, andin given cases, by catalytic agents.

The following are specific illustrations'of the manner in which the newsubstances may beformed: .f Example I: About 5 parts in weight ofcellulose (oxycellulose, hydrocellulose) are heated with about'15 partsin weight of raw or boiled linseed-oil or the fatty acids of linseed oil(or wood-oil, or fatty acids of wood-- oil, or other. oils and the fattyacids contained in them). The heating is continued during 2-4 hours at atemperature exceed- The resulting products are re- They may betransformed .theliniit ofdecomposition .of the reacting substances presenh'z'. e. at about 280- 320 C. The volatile 1products of.decomposition'a re preferably a l owed to escape from the heatingvessel. The above enumerated substances may also be heated in the auto;claveat a. temperature exceeding their limits of decomposition or inacurrent of mdifierent gases such 'as carbon dioxidyilluminatinggas,'and the like. The product of the reaction may :bev absorbedby'benzol or other-solvents, and the solution filtered and purified to ahigher degree of purity according to the methodswusedin the analysis-offats. The solution of the product obtained by a suitable solvent can beused for varnishing, impregnating and insulating purposes;

or. the product itself can be submitted to sub-v sequent treatment, suchas vulcanizing" and the like, as already stated.

EXample'III: 7 arts of starch are with 18 parts of atty acidsof lihseedfoil, wood-oil, castor-oil. or'othe'r fatty acids; or

individual case.

I claim: 1. A process for manufactumng new substances adapted to be usedas varnishes, as materials for impregnation and lnsulatlon and the like,consisting in causing fatty acids to react upon cellulose at atemperature exceeding-the limit of decomposition of the reacting.substances present, substantially as and for the purpose set-forth.

.2. 'A process for manufacturing new sub-; stances adapted to be used asvarnishes, as

materialsfor impregnation and insulation and the lmke, consistlng incausing subheated of the corresponding fatty oils, in the same 1stances-containing fatty acids to react upon. v

cellulose at a temperature exceeding the limit of decomposition of thereacting substances present, substantially 'as' and forthe purposesetforth.

3. A-process for manufacturing new sfubstances' 'adapted to he used asvarnishes, as materialsqfor impregnation and insulation and the like,consisting in causing fatty acids to react upon cellulose at atemperatui'ei easin the limit of decomposition of'threfacting substancespresent, the volae I tileaproducts'fldeveloped by the "said reaction vvbeing allowed toescape, substantially as and 4:. A processlf formanufacturingehew substances 'a'daptedlto be used; as varnishes, as Imaterials to impregnation an d ins'ulation onsistin in 'causing' fattyponcell j ose under pressure re exceeding the limit of dethe reactingsubstances presjally a' d forzthe purpose set I stances-adapted"to-"be'jused asvarnishes, as

m:aterialskier impregnationand insulation and the lihe', consisting"incausing the fatty I acid f, hiiseedf oil to' eact'v uponcarbohytemperatujre exceeding the limit- 'tion of the reactingsubstances tant lly as iand' for the pur.v

- n r I s s I anufacturing new substances a ptdgtol caused as.varnishes, .as.

materials and-p the1 1 1ke, consist1 ng in causing the fatty acids oflinseed oil-' fto react upon cellulose at atemperature exceeding the.limit of decomposition of the'reacting substances presstreamin new-'sub-;

nimpregnation and insulation -ent, substantially as: and for, thepurpose set forth. v 7. A process for manufacturing new sub [stancesadapted to be used as varnishes, as 'materlals for impregnation andinsulation and the like, conslsting in causing the fatty acidsgoflinseed oil to react upon cellulose derivatives at a temperatureexceeding the limit of decomposition of .the reacting substancespresent, substantially as and for the 4b purpose set forth,

8. The herein described-new substance adapted to be used asvarnishes, asmaterials for impregnation and insulation and thelike, being theproducts resulting-from the reaction of fatty acidsupon cellulose under.heatin.. w

9. Tie herein describe'd substances adaptved' to be used as varnishes asmaterials for impregnationand insulatlon and the like, 5 being theproducts resulting from the reac tion under heating of the fatty acidsof linseed oil u on cellulose, the product being 1

